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作 者:陈晓波[1] 陆志民[2] 王芳[2] 任宣百 Chen Xiaobo;Lu Zhimin;Wang Fang;Ren Xuanbai(Jilin City Academy of Forestry Science,Jilin 132013,China;Jilin Provincial Academy of Forestry Science,Changchun 130033,China;Forestry and Grassland Bureau of Jilin Province,Changchun 130021,China)
机构地区:[1]吉林市林业科学研究院,吉林吉林132013 [2]吉林省林业科学研究院,吉林长春130033 [3]吉林省林业和草原局,吉林长春130021
出 处:《北华大学学报(自然科学版)》2019年第5期620-627,共8页Journal of Beihua University(Natural Science)
摘 要:目前,长白山森林的树种组成和林龄结构出现严重失衡:20世纪60年代以来,以红松针阔叶混交林为主的森林顶级群落在加速消失,包括红松在内的重要用材树种所占比例减少,大龄级林木蓄积急剧萎缩.其中,仅红松面积就减少了70.4%;2015年调查表明,各树种中、幼龄林占比达到57.08%,且人工纯林面积增多,长白山森林的质量和功能正处于较低水平;长白山林区原生境重要的用材树种、特用树种及伴生树种有46种达到珍贵和濒危程度.分析珍稀濒危树种的濒危原因,针对保育现状、科研现状提出恢复对策.At present,the tree species composition and forest age structure in Changbai Mountain were unreasonable.Since 1960s,the top forest community of Korean pine and broad-leaved mixed forest was rapidly disappearing.The proportion of important timber species and the number of older forest were severely reduced,only the area of Korean pine reduced 70.4%.The investigation results showed that in each tree species,the young and middle-aged forest of Changbai Mountain has reached to 57.08%in 2015,and the area of artificial pure forest was increasing.Therefore,the quality and function of Changbai Mountain forest were at a low level.There were 46 rare tree species in Changbai Mountain.By analyzing the endangered causes of these species,according to rare forest tree conservation status and scientific research status,some specific countermeasures were put forward.
分 类 号:S757.2[农业科学—森林经理学]
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